From 93ad076820bab69602630fa1e7dc3fa78b96e3ab Mon Sep 17 00:00:00 2001
From: Arti Zirk <arti.zirk@gmail.com>
Date: Thu, 22 Mar 2018 18:29:00 +0200
Subject: [PATCH] 1521736140

---
 hello/app.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/hello/app.js b/hello/app.js
index 5dd518b..d1d62cd 100644
--- a/hello/app.js
+++ b/hello/app.js
@@ -1 +1,10 @@
-console.log("Hello!")
+"use strict;"
+
+let bookId = 0;
+
+function genNewBookId() {
+    bookId++;
+    return bookId;
+}
+
+console.log(genNewBookId());